This is the AVR Miner Board for the Duco-Miners Projects.

The complete project information can be found here: https://www.pcbway.com/project/shareproject/DUCO_Miners_a67cdb4b.html

Assembling the AVR Miner Board:

You can get this board fabricated & assembled directly from PCBWay at an attractive cost.

If you want to assemble the boards on your own, you can download the BOM & the KiCad PCB design files.

Code the AVR Miner Board:

Uploading the code to the AVR-Miner Board:

To upload the code to the AVR-Miner Board, I used a USBasp Programmer to program the microcontroller via ISP programming pins. You can also use an Arduino UNO or Arduino Nano board as a programmer. Check out this tutorial for reference: (https://www.instructables.com/Turn-Your-Arduino-Into-an-ISP)

I also built a 10-pin to 6-pin ISP connector for connecting the USBasp to the AVR Miner Board.

Make sure you connect the ISP pins correctly. Refer to the KiCAD project files for understanding the pin notations.

1) The first step is to burn the bootloader to the controller for setting the clock configuration. If you are using a controller with a pre-loaded bootloader you may skip uploading the bootloader to it. Select the appropriate Board Name from the Tools menu as per the microcontroller used on the AVR-Miner Board. For example: If the AVR-Miner has Atmega328 on it, you may select the Board as Arduino Nano. If it is Atmega8, then you may select Arduino NG (Atmega8).

2) Select the Upload Using Programmer option from the Sketch menu to upload the respective code to the AVR-Miner. Make sure you change the I2C address in the code for every different AVR-Miner Board.

Next Steps:

Refer to the main project page to view the complete project here: https://www.pcbway.com/project/shareproject/DUCO_Miners_a67cdb4b.html